Elevator guide rail lubricating mechanism



June 16, 1931. c. R. CALLAWAY ELEVATOR GUIDE RAIL LUBRICATING MECHANISMFiled May 22, 1929 2 Sheets-Sheet l n m a u R W o a ||..|||J T/ M M M H-WW F u U P !L e "5L C .l IIUWIIUJIIIL m 6 m ..V nk & 3 3 M A 1 4 a 2 C.R. CALLAWAY ELEVATOR GUIDE RAIL LUBRICATING MECHANISM June 16, 1931.

2 Sheets-Shet 2 Filed May 22 1929 INVENTOR (Ya/en cc 3, 6a //a WQ/ BY tATTCJJRNEYS CLARENCE R. CALLAWAY, F LONG BEACH, NEW YORK, ASSIG-NOR TOG-URNEY ELE- VA'IOR COMPANY, INC;, 01? NEWV YORK, N. Y.,.A CORPORATIONOF PENNSYLVANIA ELEVATOR GUIDE RAIL LUBRIGATING MECHANISM Applicationfiled May 22, 1929. Serial No. 364,978.

This invention relates to guide rail lubricating devices for elevatorguide rails.

In order to eliminate friction and provide for the smooth and eflicientoperation of an elevator car and the counterweighting mechanism, it iscommon to lubricate the guide rails. In one form of lubricatingmechanism for this purpose, the mechanism operates con tinuously andthis is undesirable since too much lubricant is fed to the guide rails.

This invention has for its salient object to provide simple, practicaland efiicient guide rail lubricating mechanism, so constructed andarranged that lubricant will be fed to the guide rails only when the caris running.

Further objects of the invention will appear from the followingspecification taken in connection with the drawings, which form a partof this application and in which Fig. 1 is an elevational view oflubricating mechanism constructed in accordance with the invention;

Fig. 2 is a top plan view of the construction shown in Fig. 1; p

Fig. 3 is an end elevation of the mechanism illustrated in Fig. 1; and

Fig. 4 is a transverse sectional eleyatlon of a guide rail shown in theconnection of the lubricating mechanism thereto.

The invention briefly described consists of a lubricating mechanismoperatively connected to the car operating shaft and so constructed andarranged that lubricant will be fed to the guide rails whenever thedrive shaft for the car is operated.

Further details of the invention will apear from the followingdescription.

In the particular embodiment of the invention illustrated in thedrawings, the car operating shaft is shown at 10 and a stub shaft orspindle 11 is directly connected to and extends beyond the shaft 10.

The lubricating mechanism is mounted in a casing 15 provided withsuitable bearings for the shaft 11 and adapted to house the mechanism.

The lubricating mechanism is illustrated in connection with a well knownsystem, including a storage tank 16, accumulator 17, header ordistributor 18, and air vent 19.

The pump 20 receives oil from the reser- 6o 'voir or supply tank 16through a conduit 26 and discharges oil through a conduit 27 which leadsto the air vent 19. The air vent 19 is connected by a conduit 30 to theaccumulator 17 and oil passes from the accumulator through a conduit 31through the header or distributo-r18. The oil passes from the dis-.

tributor through pipes 32, 33, 34 and 35 to rail cups 40. The rail cups,as shown in Fig.

4, surround the rails and are preferably filled 7 with suitable packingmaterial, such as felt packing 41. In Fig. 3 there are shown fourconduits from the header leading tothe guide rails, it being assumedthat there are two guide rails for the car and two guide rails for thecounterweighting mechanism. It will be obvious that as many conduits maybe provided as there are rails to be lubricated.

In Fig. 3 there is shown a return conduit 45 leading from theaccumulator to the supply tank, through which any excess oil is returnedto the supply tank.

In the operation of the mechanism above described, the accumulator 17 isinitially filled with oil and after the pressure in the accumulator isbuilt up, each stroke of the pump 20 will cause an increment of oil tobe fed to the header and through the header to the conduits 32, 33, 34and 35, which lead to the guide rails. Thus, whenever the car operatingshaft is rotating, the pump will be operated and oil will be fed to theguide rails.

Although the drawings illustrate certain specific details of apparatusfor carrying out they invention, it should be understood that 95 theinvention is not limited to the particular structure shown and describedbut that changes in the construction and in the arrangement of thevarious cooperating parts 7 may be made without departing from the lugconducting oil from the pump tosaid rails.

2. Lubricating mechanism for elevator guide rails comprising acaroperating shaft, :1- pump driven thereby, guide rails, lubricating cupsmounted thereon, and conduits lead ing from the pump to thelubricatingcups.

3. Lubricating mechanism for elevator guide rails comprising a carope-rating shaft, a shaft adapted to rotate therewith, a pump disposedabove said second shaft and driven thereby, guide 'rails, and conduitsfor conducting oil from the pump to said rails.

Lubricating mechanism for elevator guide rails comprising a caroperating shaft, a shaft adapted to rotate therewith, an eccentricmounted on said last'named shaft, a pump disposed above said eccentricand having a piston and a piston rod operatively driven by saideccentric, guide rails, and conduits for conducting oil from the pump tosaid rails.

CLARENCE R. OALLAWAY.

